Facile synthesis of efficient construction of tungsten disulfide/iron cobaltite nanocomposite grown on nickel foam as a battery-type energy material for electrochemical supercapacitors with superior performance

Yedluri Anil Kumar; G Mani; Mohan Reddy Pallavolu; Sangaraju Sambasivam; Ramesh Reddy Nallapureddy; Manickam Selvaraj; M Alfakeer; Aboud Ahmed Awadh Bahajjaj; Mohamed Ouladsmane; Sunkara Srinivasa Rao; Seeram Ramakrishna

doi:10.1016/j.jcis.2021.11.193

Facile synthesis of efficient construction of tungsten disulfide/iron cobaltite nanocomposite grown on nickel foam as a battery-type energy material for electrochemical supercapacitors with superior performance

J Colloid Interface Sci. 2022 Mar:609:434-446. doi: 10.1016/j.jcis.2021.11.193. Epub 2021 Dec 3.

Affiliations

¹ Center for Nanofibres and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore; Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
² Chemistry Department, St Joseph's College, Tiruchirappalli, Tamil Nadu 620002, India.
³ School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea. Electronic address: pallavolumohanreddy@gmail.com.
⁴ Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
⁵ School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
⁶ Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia.
⁷ Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia. Electronic address: msalonazi@pnu.edu.sa.
⁸ Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
⁹ Department of Mechatronics Engineering, Kyungsung University, 309 Suyeong-ro, Nam-gu, Busan 48434, Republic of Korea.
¹⁰ Center for Nanofibres and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore. Electronic address: seeram@nus.edu.sg.

PMID: 34929580
DOI: 10.1016/j.jcis.2021.11.193

Abstract

In this research literature, a tungsten disulfide/iron cobaltite (WS₂/FeCo₂O₄) interwoven construction array was prepared by a simplistic hydrothermal approach on Ni foam as an integrative electrode for supercapacitors (SCs). For characterization of the wearing of WS₂ nanostructure on FeCo₂O₄ nanosheets (WS₂/FeCo₂O₄) by the Scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The WS₂/FeCo₂O₄ nanosheets supply a larger surface region and sufficient space to allow for volume changes. Moreover, considerable features of wellbeing conductivity from the Ni foam conductor and the synergistic procedures between WS₂ and FeCo₂O₄, the integrated WS₂/FeCo₂O₄ composite achieved prominent SCs storage performances with a higher specific capacity of 1122C g^-1 (2492.9F g^-1) at 1 A g^-1 and notable capacity retention of 98.1% at 3 A g^-1 after 5000 long cycles and retained higher rate capacity of 951.9 C g^-1 at 15 A g^-1. For practical application, an asymmetric supercapacitors type WS₂/FeCo₂O₄//active carbon (WS₂/FeCo₂O₄//AC) device was successfully prepared. The WS₂/FeCo₂O₄//AC device displays a higher specific capacity of 110C g^-1 and energy density of 85.68 W h kg^-1 at power density at 897.65 W kg^-1, as well as the superior initial capacitance of 98.7% with cyclic stabilities after 4000 long cycles. Thus, these results indicated the great potential of the constructed WS₂/FeCo₂O₄//AC in the scenario electrochemical properties due to their outstanding energy storage activities.

Keywords: Asymmetric supercapacitors; Better capacity; Favored electrode material-type; High energy storage; Hydrothermal procedure; Tungsten disulfide/iron cobaltite interwoven construction.